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<li class="navelem"><a class="el" href="namespaceipc.html">ipc</a></li><li class="navelem"><a class="el" href="namespaceipc_1_1session.html">session</a></li><li class="navelem"><a class="el" href="classipc_1_1session_1_1Session__server__impl.html">Session_server_impl</a></li><li class="navelem"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html">State</a></li>  </ul>
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<a href="#pub-attribs">Public Attributes</a> &#124;
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<p>All internal mutable state of <a class="el" href="classipc_1_1session_1_1Session__server__impl.html" title="Internal class template comprising API/logic common to every Session_server variant,...">Session_server_impl</a>.  
 <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#details">More...</a></p>
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Collaboration diagram for ipc::session::Session_server_impl&lt; Session_server_t, Server_session_t &gt;::State:</div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a76d6d531e2bb8e82992a35959357b16d"><td class="memItemLeft" align="right" valign="top">std::atomic&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a76d6d531e2bb8e82992a35959357b16d">m_last_cli_namespace</a></td></tr>
<tr class="memdesc:a76d6d531e2bb8e82992a35959357b16d"><td class="mdescLeft">&#160;</td><td class="mdescRight">The ID used in generating the last Server_session::cli_namespace(); so the next one = this plus 1. 0 initially.  <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a76d6d531e2bb8e82992a35959357b16d">More...</a><br /></td></tr>
<tr class="separator:a76d6d531e2bb8e82992a35959357b16d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab6097ff11f1f8cca396ece86482861f4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a5286c0f847ccf7e62d87c088e7be32e0">Incomplete_sessions</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#ab6097ff11f1f8cca396ece86482861f4">m_incomplete_sessions</a></td></tr>
<tr class="memdesc:ab6097ff11f1f8cca396ece86482861f4"><td class="mdescLeft">&#160;</td><td class="mdescRight">The set of all <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a3a608ab714f6a6725e6122470d87713f" title="Internally used ref-counted handle to a Server_session_dtl_obj, suitable for capturing and passing ar...">Incomplete_session</a> objects such that each one comes from a distinct <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a60ec88b23d73c354959a1e11636dc717" title="See Session_server method.">async_accept()</a> request that (1) has accepted a <a class="el" href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html" title="Implements both sync_io::Native_handle_sender and sync_io::Native_handle_receiver concepts by using a...">transport::sync_io::Native_socket_stream</a> connection and thus created a <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#ae87dfd48a7e435800255722301d5bddc" title="Short-hand for concrete Server_session_dtl type, which each async_accept() creates internally,...">Server_session_dtl_obj</a> but (2) whose <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html#a31a6cd6a9ed4f836f0844ddb4069080f" title="See protected counterpart.">Server_session_dtl::async_accept_log_in()</a> has not yet completed (fired handler).  <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#ab6097ff11f1f8cca396ece86482861f4">More...</a><br /></td></tr>
<tr class="separator:ab6097ff11f1f8cca396ece86482861f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7d717bece2122ff619496717b5da7b68"><td class="memItemLeft" align="right" valign="top">boost::movelib::unique_ptr&lt; <a class="el" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html">transport::Native_socket_stream_acceptor</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a7d717bece2122ff619496717b5da7b68">m_master_sock_acceptor</a></td></tr>
<tr class="memdesc:a7d717bece2122ff619496717b5da7b68"><td class="mdescLeft">&#160;</td><td class="mdescRight"><a class="el" href="classipc_1_1transport_1_1Native__socket__stream.html" title="Implements both Native_handle_sender and Native_handle_receiver concepts by using a stream-oriented U...">transport::Native_socket_stream</a> acceptor avail throughout <code>*this</code> to accept init please-open-session requests.  <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a7d717bece2122ff619496717b5da7b68">More...</a><br /></td></tr>
<tr class="separator:a7d717bece2122ff619496717b5da7b68"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a96b5d124c1a31532a38a0f0cd095ec05"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classipc_1_1session_1_1Session__server__impl.html#ae7f35b32be309d354044662f0e17a891">Mutex</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a96b5d124c1a31532a38a0f0cd095ec05">m_mutex</a></td></tr>
<tr class="memdesc:a96b5d124c1a31532a38a0f0cd095ec05"><td class="mdescLeft">&#160;</td><td class="mdescRight">Protects <code>m_incomplete_sessions</code>. See class doc header impl section for discussion of thread design.  <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a96b5d124c1a31532a38a0f0cd095ec05">More...</a><br /></td></tr>
<tr class="separator:a96b5d124c1a31532a38a0f0cd095ec05"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afea14f96bce70093ebf65d0f9b612b29"><td class="memItemLeft" align="right" valign="top">boost::movelib::unique_ptr&lt; flow::async::Single_thread_task_loop &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#afea14f96bce70093ebf65d0f9b612b29">m_incomplete_session_graveyard</a></td></tr>
<tr class="memdesc:afea14f96bce70093ebf65d0f9b612b29"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mostly-idle thread that solely destroys objects removed from <code>m_incomplete_sessions</code> in the case where a <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html#a31a6cd6a9ed4f836f0844ddb4069080f" title="See protected counterpart.">Server_session_dtl::async_accept_log_in()</a> failed as opposed to succeeded (in which case it is emitted to user).  <a href="structipc_1_1session_1_1Session__server__impl_1_1State.html#afea14f96bce70093ebf65d0f9b612b29">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><div class="compoundTemplParams">template&lt;typename Session_server_t, typename <a class="el" href="classServer__session__t.html">Server_session_t</a>&gt;<br />
struct ipc::session::Session_server_impl&lt; Session_server_t, Server_session_t &gt;::State</div><p >All internal mutable state of <a class="el" href="classipc_1_1session_1_1Session__server__impl.html" title="Internal class template comprising API/logic common to every Session_server variant,...">Session_server_impl</a>. </p>
<p >It's grouped into this inner <code>struct</code>, so that we can destroy it in the destructor via an <code>optional::reset()</code>, letting items be destroyed automatically in the opposite order in which they were constructed &ndash; and <em>then</em> perform certain final steps when that state (including various threads running) is no longer a factor. See <a class="el" href="classipc_1_1session_1_1Session__server__impl.html" title="Internal class template comprising API/logic common to every Session_server variant,...">Session_server_impl</a> dtor and <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a40fca0b878f9150f5f7db55768da45ad" title="Utility for sub-classes: ensures that task() is invoked near the end of *this dtor&#39;s execution,...">sub_class_set_deinit_func()</a>. </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00359">359</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>
</div><h2 class="groupheader">Member Data Documentation</h2>
<a id="afea14f96bce70093ebf65d0f9b612b29" name="afea14f96bce70093ebf65d0f9b612b29"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afea14f96bce70093ebf65d0f9b612b29">&#9670;&nbsp;</a></span>m_incomplete_session_graveyard</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Session_server_t , typename <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt; </div>
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          <td class="memname">boost::movelib::unique_ptr&lt;flow::async::Single_thread_task_loop&gt; <a class="el" href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a>&lt; Session_server_t, <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt;::State::m_incomplete_session_graveyard</td>
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<p>Mostly-idle thread that solely destroys objects removed from <code>m_incomplete_sessions</code> in the case where a <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html#a31a6cd6a9ed4f836f0844ddb4069080f" title="See protected counterpart.">Server_session_dtl::async_accept_log_in()</a> failed as opposed to succeeded (in which case it is emitted to user). </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00404">404</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>

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<a id="ab6097ff11f1f8cca396ece86482861f4" name="ab6097ff11f1f8cca396ece86482861f4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab6097ff11f1f8cca396ece86482861f4">&#9670;&nbsp;</a></span>m_incomplete_sessions</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Session_server_t , typename <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt; </div>
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a5286c0f847ccf7e62d87c088e7be32e0">Incomplete_sessions</a> <a class="el" href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a>&lt; Session_server_t, <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt;::State::m_incomplete_sessions</td>
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<p>The set of all <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a3a608ab714f6a6725e6122470d87713f" title="Internally used ref-counted handle to a Server_session_dtl_obj, suitable for capturing and passing ar...">Incomplete_session</a> objects such that each one comes from a distinct <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a60ec88b23d73c354959a1e11636dc717" title="See Session_server method.">async_accept()</a> request that (1) has accepted a <a class="el" href="classipc_1_1transport_1_1sync__io_1_1Native__socket__stream.html" title="Implements both sync_io::Native_handle_sender and sync_io::Native_handle_receiver concepts by using a...">transport::sync_io::Native_socket_stream</a> connection and thus created a <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#ae87dfd48a7e435800255722301d5bddc" title="Short-hand for concrete Server_session_dtl type, which each async_accept() creates internally,...">Server_session_dtl_obj</a> but (2) whose <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html#a31a6cd6a9ed4f836f0844ddb4069080f" title="See protected counterpart.">Server_session_dtl::async_accept_log_in()</a> has not yet completed (fired handler). </p>
<p >Protected by <a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a96b5d124c1a31532a38a0f0cd095ec05" title="Protects m_incomplete_sessions. See class doc header impl section for discussion of thread design.">m_mutex</a>; accessed from thread Wa and threads Ws. See class doc header impl section for discussion of thread design.</p>
<h3>Impl design</h3>
<p >Once a <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html" title="This is the data-less sub-class of Server_session or any more-advanced (e.g., SHM-capable) variant th...">Server_session_dtl</a> is created by <code>*this</code>, we do <code>async_accept_log_in()</code> on it. We cannot capture that <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html" title="This is the data-less sub-class of Server_session or any more-advanced (e.g., SHM-capable) variant th...">Server_session_dtl</a> itself into its handler's lambda, as that would create a cycle leak wherein the object can never be destroyed. (This is typical when maintaining a boost.asio-style I/O object by a <code>shared_ptr</code> handle.) So we capture an <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#ae66f28a17f3cdd72d97212126483650a" title="weak_ptr observer of an Incomplete_session.">Incomplete_session_observer</a> (<code>weak_ptr</code>) thereof; but store the <a class="el" href="classipc_1_1session_1_1Server__session__dtl.html" title="This is the data-less sub-class of Server_session or any more-advanced (e.g., SHM-capable) variant th...">Server_session_dtl</a> (a/k/a <a class="el" href="classipc_1_1session_1_1Session__server__impl.html#a3a608ab714f6a6725e6122470d87713f" title="Internally used ref-counted handle to a Server_session_dtl_obj, suitable for capturing and passing ar...">Incomplete_session</a>) here in <code>*this</code>, as of course it must be stored somewhere. Then if <code>*this</code> dtor is invoked before the aforementioned <code>async_accept_log_in()</code> handler fires, the handler shall fire with operation-aborted as desired.</p>
<h3>Ordering caveat</h3>
<p >As of this writing, since the dtor auto-destroys the various members as opposed to any manual ordering thereof: This must be declared before <a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#a7d717bece2122ff619496717b5da7b68" title="transport::Native_socket_stream acceptor avail throughout *this to accept init please-open-session re...">m_master_sock_acceptor</a>. Then when dtor runs, first the latter's thread Wa shall be joined as it is destroyed first. Then <a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#ab6097ff11f1f8cca396ece86482861f4" title="The set of all Incomplete_session objects such that each one comes from a distinct async_accept() req...">m_incomplete_sessions</a> shall be destroyed next. Thus there is zero danger of concurrent access to <a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#ab6097ff11f1f8cca396ece86482861f4" title="The set of all Incomplete_session objects such that each one comes from a distinct async_accept() req...">m_incomplete_sessions</a>. Obviously the dtor's auto-destruction of <a class="el" href="structipc_1_1session_1_1Session__server__impl_1_1State.html#ab6097ff11f1f8cca396ece86482861f4" title="The set of all Incomplete_session objects such that each one comes from a distinct async_accept() req...">m_incomplete_sessions</a> is not protected by any lock.</p>
<p >We could instead manually destroy stuff in the proper order. I (ygoldfel) do like to just rely on auto-destruction (in order opposite to declaration/initialization) to keep things clean. </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00392">392</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>

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<a id="a76d6d531e2bb8e82992a35959357b16d" name="a76d6d531e2bb8e82992a35959357b16d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a76d6d531e2bb8e82992a35959357b16d">&#9670;&nbsp;</a></span>m_last_cli_namespace</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Session_server_t , typename <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt; </div>
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          <td class="memname">std::atomic&lt;uint64_t&gt; <a class="el" href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a>&lt; Session_server_t, <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt;::State::m_last_cli_namespace</td>
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<p>The ID used in generating the last Server_session::cli_namespace(); so the next one = this plus 1. 0 initially. </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00362">362</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a7d717bece2122ff619496717b5da7b68">&#9670;&nbsp;</a></span>m_master_sock_acceptor</h2>

<div class="memitem">
<div class="memproto">
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template&lt;typename Session_server_t , typename <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt; </div>
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          <td class="memname">boost::movelib::unique_ptr&lt;<a class="el" href="classipc_1_1transport_1_1Native__socket__stream__acceptor.html">transport::Native_socket_stream_acceptor</a>&gt; <a class="el" href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a>&lt; Session_server_t, <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt;::State::m_master_sock_acceptor</td>
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<p><a class="el" href="classipc_1_1transport_1_1Native__socket__stream.html" title="Implements both Native_handle_sender and Native_handle_receiver concepts by using a stream-oriented U...">transport::Native_socket_stream</a> acceptor avail throughout <code>*this</code> to accept init please-open-session requests. </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00395">395</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a96b5d124c1a31532a38a0f0cd095ec05">&#9670;&nbsp;</a></span>m_mutex</h2>

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template&lt;typename Session_server_t , typename <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt; </div>
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          <td class="memname"><a class="el" href="classipc_1_1session_1_1Session__server__impl.html#ae7f35b32be309d354044662f0e17a891">Mutex</a> <a class="el" href="classipc_1_1session_1_1Session__server__impl.html">ipc::session::Session_server_impl</a>&lt; Session_server_t, <a class="el" href="classServer__session__t.html">Server_session_t</a> &gt;::State::m_mutex</td>
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<span class="mlabels"><span class="mlabel">mutable</span></span>  </td>
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<p>Protects <code>m_incomplete_sessions</code>. See class doc header impl section for discussion of thread design. </p>

<p class="definition">Definition at line <a class="el" href="session__server__impl_8hpp_source.html#l00398">398</a> of file <a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a>.</p>

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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>session/detail/<a class="el" href="session__server__impl_8hpp_source.html">session_server_impl.hpp</a></li>
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